Tire spike



FIG. 1 is an upper, left hand perspective view of a tire spike of ourclaimed design;

FIG. 2 is a front view of the tire spike of FIG. 1;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof.

The ornamental design for a tire spike, as shown and described.